a)
49^{\frac{1}{2}}=\sqrt{49}=7
b)
0,0016^{\frac{1}{4}}=(0,2^4)^{\frac{1}{4}}=0,2^1=0,2
c)
64^{\frac{4}{3}}=(2^6)^{\frac{4}{3}}=2^{6*\frac{4}{3}}=2^8=256
d)
(0,25)^{-\frac{1}{2}}=(0,5^2)^{-\frac{1}{2}}=(\frac{5}{10})^{-1}=(\frac{1}{2})^{-1}=2^1=2
e)
32^{\frac{4}{5}}=(3^5)^{\frac{4}{5}}=3^4=81
f)
243^{\frac{3}{5}}=(3^5)^{\frac{3}{5}}=3^3=27
g)
(0,125)^{-\frac{2}{3}}=((0,5)^3)^{-\frac{2}{3}}=(\frac{1}{2})^{-2}=2^2=4
h)
(3\frac{3}{8})^{-\frac{2}{3}}=(\frac{27}{8})^{-\frac{2}{3}}=\frac{8}{27}^{\frac{2}{3}}=((\frac{2}{3})^3)^{\frac{2}{3}}=(\frac{2}{3})^2=\frac{4}{9}